Demountable interchangeable wheel mounting



Jan. 19, 1932.

C. S. ASH

DEMOUNTABLE INTERGHANGEABLE WHEEL MOUNTING Filed May l5, 1924 5 Sheets-Sheet l Jan. 19, 1932. c. s. ASH 1,842,140

' DEMOUNTABLE INTERCHANGEABLE WHEEL MOUNTING Filed May 15, 1924 5 Sheets-Sheet .2

Jan, 19, 1932.

c. s. ASH 1,842,140

Filed May 15, 1924 retenue nu. is, 1932 'Y f ineens fior securing-the Wheei in piace upon tne buio, which ineens Wili rigidiyhol the Wheei in plone on obviote the possibility of v "onion eres EEEQUNTBLE NTEEGHANQEMLE MONZEN@ Application Medi Moy lo, Seriell No. il.

Ti/Vire Wheeis es oomrnoniy constructed inv einde e hub sheii which is sieeveri .upon the inner or wheei hub end into which shell the Wire spokes nre ieceri., This hun shell is usnoiiy suppoimtedL u on the inner 1nui) et two or more points, usue iy upon e taper sent efijocent the inner end oi the hub, emi n corre spending sent neer the outer end of the buio, with means ior 'noiriing the sheii in place upon the inner hub. it is eso necessery in such constructions that some ineens be pro-1 vided 'for preventing reintive rotetion between tiie hub nini shell to toire cere ot time driving end Vinniin streins. Such constructions ere expensive to mnnnineture eine to the oeenrooy with which' the perte must necesseriiy he nieeiiinefi@ ond iinrtiiera it is nsueiiy neeessey to provioie sept-anote inciting" ineens for nneventing the neoioientni dispineement ot the ineens which is provided 'for iioiciing the siieii noon the hun.' "Uniess Cere is exercised in nionntino" the nin-oei, the ponts not "oronerin' esseinoie nneii iooiie, one not so ossemiiieti. ond iocieo., the Wneei moy beeorne ioose in on@ ne tieteo'neci from the nnb, emisionx senions oeeidenn The object oi tine present invention is to siinpiity end enen en tine construction oi de monnteoie wire "o eeis en'inrther to oeiii tete mounting' out the wheei nnoiinsure noj Gurney end seonifity in such mounting. it in niso en objaeet to provide. n eonstruetion wherein e simple eieient Wneei or inner nnb construction ning ioe empioyed nn wherein greet oeeureey in the menneeture of the Wheei is not required enti n veijy sinopie strong sind rigid construction enov nttoeiinient oai tnesiieii to tile hub is seenieei, A 'further object is time securing; oii e construetion noving n rniniinnrn number oit ports, endl wherein the rernovei or replacement of time Wheei is iooiiiteteri and oooureey oi mounting seoni'eoi Without the necessity for exercising;n extreme core in the mounting oi" tile wheel and securing it in pines upon the hun. .iiurther obgeet is to-secure simpie occidental Adisconneoon Tand iemounting Vof the Wheei., it is also en object to provide o eonstruction end arrangement whereby ell lood, driving anni braking strains ere transmitteci between the hub sheii nni inner driv-l ing or mounting member through e irictionai connection between these ports, enti iny which the menos for creating suon irietionel` oonnection oise servesJ estestening ineens for hoiciing the "Wheel in'pieceupon seid inner member, anni which iestening ineens may be qnioiiiy envi ensiiy removed 'for tine purpose oi" dernounting the wheel. A. inrtiier object is to provide en nrrongeinent Wherety the hun sheii is Connected to the innei1 mounting et the inner end oniy oi the hun shell end the.

necessity for securing and inciting ineens et outer enei oi the eiieii is oinintedn n inrtifei1 onjeet is'to prooioie oertnin other new ene-i useini in the construction nn oirnno'enient oi parte? eii es hereinofter more iniiy eiesoriiieeio v Witn ti e noone ond other entis in View the invention oonsiets in so mounting ond soeuring siieii in piece n'oon tine innen mounting seid enoii mii be supported ndjecent its inner enci only enel wiii ne seenreri in piece b ineens niso ioeeteoi edineent its inner en thereby obvieting the necessity 'ioi' providing n beaming ier the sheii upon tiene inner member Winnie is seporote onei tiistinet from the means for taking the lood enti torsional strnins, ond which nearing enti driving ineens ero also sepeente enl distinct from the ineens or ee curing the sneii in pince upon the inner mem- 'bena The invention iui'ther consists in the construction ond nrrnngenient v oi parte whereby eimniioity end eneepnese of oonstrnetion ere seem-eti, end accuracy end ieoiiity oi mounting anni' demounting insoree. The 'invention further consiste in oertoin other new enti useiui 'ieetures in the construction, nrrengement on@ combination or" ports, nii es nereineitei more iuiiy escriioeoi ond pnrtieuinriy pointed out in the nppendeei' eininisg` reference being had to the ecconipenying dreivings, in which Figure upper haii oi e -Wiieeand hub embodying tentures ot the present invention end illustrative of tile seine;

i is e verticni section through the Y o Further,

.gnu

Fig. 2 is a sectional detail showing a modilied construction wherein the arran ement of support for the shell upon the hu and the drivin connection between the hub and shell is modified to illustrate a further application of the invention to di'erent inner ub constructions;

Fig. 3 is an enlarged sectional detail showin afurther application of the invention to ierent hub structures and a further modication of the invention as applied to such structures;

Fig. d is a sectional detail similar to Fig. 3, in which the construction is modified to illustrate the application of the invention to another form of inner hub;

Fig. 5 is an enlarged sectional detail illustrating a further modified application of the present invention;

Fig. 6 is a sectional detail showing a further' modification of the present invention and adaptation thereof.

In demountable wire wheelstructures emplo 'ng a hub shell i'nto which the wire spo es are laced, it has been the practice to provide a bearing for this shell upon the inner or (permanent wheel hub, adjacent the inner en second bearing for the outer end of the shell, said outer bearing usually comprising a member screwed upon the outer end of the hub to en hold the s ell in place upon the hub, at the same time forming a bearing for the outer end of the shell. 'In 4order to'prevent this outer bearing member from becoming accidentally detached and permitting the wheel to come oi, separate locking means has been provided. Y

it has been the common practice to provide a driving connection between the 1nner hub and the shell to take the driving strains, but in the present instance it is proposed `to combine the bearing, the driving and the locking or holding means in such a manner yas to greatly simplify construction and cheapen manufacture by obviating the necessity for accurate machining operations.

The supporting of the outer end of the hub shell upon the inner hub has been found to be unnecessary, as such hub shells are necessarily ofcomparatively large diameter and are usually Aformed from sheet metal of a suilicient to give the neoessa rigidity to t e shell to carry the' load app ied to its over-hanging or unsupported outer end. Elimination of the outer end support not only simplifies construction in that respect, but also provides for the use of a simple means at the inner end of the hub for securin the wheel in place, such securing means being readily removable for the lpurpose of demounting the wheel, and the hu shell may therefore be provided with a permanent end closure or cap which is unconnected with the of the hub and to also provide aA age the outer end of the shell and vto turn therewith is an inner mounting member 4, which in the construction shown in Fig. 1, is formed with an integral brake drum 5, the wall 6 of which bralze rum provides a place of attachment for a demountable wire wheel which wheel comprises a hub shell 7 into which the wire spokes 8 are laced, with their outery ends connected in the usual manner to any suitable rim structure 9. The

inner end of the hub shell is flanged outwardly as at 11 and the peripheral edge portion 10 of this flange is formed to conform to the inclination of the` drum wall 6 and seat thereagainst. Flanged openings are provided in the shellflange 11 to receive securing bolts l2 which are screwthreaded to engage screwthreaded openings in the drum wall 6. Adjacent the meeting angle of the shell with its Hang@ 11 ysaid flange is formed to seat against the drum wall 6 and thus when the shell is in place and the bolts 12 are turned up to draw the flange 11 and its edge 10 into firm frictional'engagement with the wall 6, the shell will be rig1dly and firmly held in place u on the inner hub and the bolts 12, of whic there may be any desired number located around the hub, are relieved of all strains other than the strain of drawin the shell into frictional contact with the rum wall, by reason of this frictional contact, which will be sufficient to revent any movement of the kshell upon t e drum wall and also sufiicient to transmit the driving torque. The inner hub or mounting 4 may be enlarged adjacent its merging into the drum wall 6 to provide a shoulder 13, which shoulder 1s simply and solely for the purpose of guiding the hub shell to place during the o eration of mounting the wheel upon the ub, but the shell 7 when secured in place does not engage the shoulder, and the outer end of the shell is entirely unsupported. `It is supported solely at its inner or flanged end and is of suflicient rigidity to take the load applied tQ its unsupported or overhanging outer end. As the outer end of this shell is unsupported by and unconnected to the inner hub it may be provided with a permanent cap or closure 14 which will come away with the wheel when the wheel is demounted by removin the bolts 12.

In t is construction no locking or other securing means is necessary at the outer end of the hub or shell, and the same bolts 12 which secure the wheel inplace also serve to eii'ect a drivin connection between the hub and shell by rawing these parts into firm llO shell longitudinally, there is a wedging action which creates a strong frictional contact and the torque and load strains are taken at this point of frictional contact the. shell being accurately centeredupon the hub and supported entirely by the peripheral inclined edge 35 of the flange 16. The shell is unsupsorted except u on theannular edge of t such movement is entirely lacking, t

y with the v`6, the annu ar flange 55 on the inner hub 1s -formed with an inclined friction surface 5d provided by an annular groove in the outer face of the ange, and in the disk wheel con struction the disk is offset adjacent the axle opening therein to receive the hub, which oii'set portion rovidcs an inclinedy wall to engage the in ined surface 56 on thehub vflan ge and thus createa strong frictional con- 'y tact between the surfaces to take the load and driving strains.

, groove.

wheel has its outwardly extending wall 22 formed with an offset 57 to engage within the groove in the Bange 55 and to provide an inclined surface to meet the surface 56- of the When the shell is drawn toward the flange by means of the bolts 58 assing through the flange and through opemngs in the wall 22, the inclined surface of the annular offset on the shell is drawn into firm frictional engagement with the inclined surface of the groove in the flange and thus the hub shell is accurately centered u on the inner hub and supported solely by t e fiange, this frictional engagement of the shell with the flange serving to transmit all torsional strains from the inner hub' to the wheel and to also y take the load strains. If found desirable, the nuts 59 on the outer ends of the bolts 58 may be formed each with a cofical inner end portion 60 to engage within a conical opening provided therefor within the wall 22 of the shell, so that when the nuts are turned up to force the shell toward the flan 5,5, ythe conicall inner ends 60 of the nuts wie be fric tional en a ed within the o n' in the shell will tpevent accidentallteurlxiisg of the nuts which would rmit the wheel to become loose on the inner ub.' In this construction the enga ement of the annular offset on the shell wit in the annular-groove in the hub flange, centers the shell upon the hub and pro-y vides a driving friction between the flan and shell, and by securing the shell in place by means of a single row of bolts, the wheel may be quickly detached, and the bolts are relieved of driving and load strains.

rshell itself which overhan Lthe inner axle member, an the clearance be The hub shell 18 ofthe wire4 g connection between said shell an In each of the several constructions shown in the drawings, the hub shell ofthe demountable wire wheel is attached to and supjgrted by the inner drivin or mounting mem r of the axle, adjacent t e inner end of the shell, and the outer end of the shell is unsup rted, the load strains thereon bein taken y the t e outer end of tween the inner hub or axle member and the outer end portion of the shell may be very small, even to a few thousandths of an inch, but if the shell is su orted concentrically with the inner hub an has such a strong frictional engagement therewith that it cannot move in the slightest degree laterally lsaid outer end portion of the inner hub will take noneA of the load on the wheel, and this clearance between the hub and the outer end oi the shell will be maintained under all conditions.

In each of the several constructions shown, the zone of attachment of the wire wheel hub shell to the inner hub or axle member is adjacent the inner'end of the shell and the means for transmitting torsional strains and taking the load is also located adjacent but outwardly of this zone, so that the means ro vided for detachably holding the whee in place will be relieved of all load and driving strains, and the frictional contact between shell and hub portions will be well radially outward from said fastening means or bolts so as to extend the diameter of such contact area and increase its effectiveness in taking driving and load strains.

Havin thus fully described my invention, what I c aim is:

1. In a wheel, the combination of a hub shell and means for detachably attaching the inner end rtion of said shell-to an axle member, sald shell being formed with an annular seat outwardly from the wheel axis beond said attachin means and ad'acent the inner end of the s ell, said seat orming a place of contact of said shell with said axle member and said attachin means being arranged to force said she l yieldingly into strong frictional Contact with said axle member at said seat only.

2. The combination with a rim, a hub shell, and spokes connecting the shell to the rim, of means for detachably attaching said shell to an axle member at the inner end of the shell, said shell being formed with a continnous annular seat concentric with the wheel axis to seat upon said axle member outwardly ofthe wheel beyond said attachin means, said attaching means being arrange to create a driving and load carryin frictional j axle member at Asaid seatonlyf 3. In a wheel, the combination of a hub shell and means for detachably attaching said shell adjacent the inner end portion of the ice y lll shell 'to an axle member having an outwardly extending flange, the inner end of said she l being enlarged in diameter and formed with .an annular seat to seat against Said flange,

and said attaching means including fastenin members engaging the enlarged inner en portion of the shell inwardly of said annular seat for forcin` `vsaid seat into frictional Contact with said ange, said portion of said shell engaged by said fastening member being unseated andadapted to yield' under the force of said fastening members in forcing said shell to its seat on said flange.

4. In a wheel, the combination of a hub shell having an'enlarged inner end portion rovided with a series of spaced apart openings about the axis of the shell, and bolts engaging said openings for detachably attaching the shell to an outwardly extending flange on an axle member, the edge portion of the enlarged inner end of the shell being formed with a seat to seat upon saidlange, the seating surface of which seat is inclined to the axis of the shell to engage a similarly inelined portion of the flange, -said seat being at a greater radial distance from the axis of the wheel than said bolts, and said portion of said shell through which said bolts extend being unseated, said shell engaging said axle member at said seat only, whereby the' strain of said bolts is applied toa yielding portion of said shell inwardly fromesaid seat.

5. In a vehicle wheel. the combination of an inner hub, an outer hub, radially-spaced inter-hub seating surfaces arranged in zones displaced axially from each other, and means for securing saidhubs together engaging said outer hub in the zone between said interhub seating surfaces.

6. In a vehicle wheel, the combination of an inner hub having a substantiallyiradial bearing face, an elongated outer hub having a complemental bearing face engaging withk the` rst and provided with anchorage zones for two sets ofrim supporting means, one of said zonesl being adjacent said bearing face and the other at a substantial distance outwardly of said bearing face, and common means for centering and securing the outer hub to the inner hub with said complemental hearing faces in engagement. f

7. In a vehicle wheel, the combinationof an inner hub having a-radial lflange, an elongated outer hub having its inner end flared outwardly to form a radially extending portion, and an inwardly oiset portion extending from said radially extending portion, said flange and inwardly offset portion being 'provided with complemental inter-hub bearing surfaces, and additional inter-hub bearing surfaces spaced from the first named' bearing surfaces, and axially extending securing means engaging the outer hub in the zon'e between said bearing surfaces 'or clamping it to the inner hub.

8. In a vehicle wheel, the combination o an inner hub having a radial flan e, an elongated wire wheel outer hub havmg an outwardly flared portion 'complemental to said radial flange, radially spaced inter-hub seating surfaces on said ange and the outwardly flared portion of said wire wheel hub, and means engaging said outer hub in the zone between said inter-hub seating surfaces for clamping it to the inner hub.

9. In a vehicle wheel, the combination of an inner hub, an elongated outer hub provided with anchorage zones for two sets of rim supporting means, radially spaced interhub seating surfaces on the inner and outer hubs, one of the anchorage zones being adjacent the seating surfaces `and the other at asubstantial distance outwardly of the seat- 

